Search for Second-Class Currents in τ−→ωπ−ντ
We report an analysis of τ − decaying into ω π − ν τ with ω → π + π − π 0 using a data sample containing nearly 320 × 10 6 τ pairs collected with the BABAR detector at the PEP-II B -Factory. We find no evidence for second-class currents, and we set an upper limit of 0.69% at 90% confidence level for...
| Autores: | ; ; |
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| Tipo de documento: | Artículo |
| Estado: | Published version |
| Fecha de publicación: | 2009 |
| País: | España |
| Institución: | Universidad de Barcelona |
| Repositorio: | Dipòsit Digital de la UB |
| OAI Identifier: | oai:diposit.ub.edu:2445/138269 |
| Acceso en línea: | https://hdl.handle.net/2445/138269 |
| Nivel de acceso: | Acceso abierto |
| Palabra clave: | Física de partícules Experiments Particle physics |
| Sumario: | We report an analysis of τ − decaying into ω π − ν τ with ω → π + π − π 0 using a data sample containing nearly 320 × 10 6 τ pairs collected with the BABAR detector at the PEP-II B -Factory. We find no evidence for second-class currents, and we set an upper limit of 0.69% at 90% confidence level for the fraction of second-class currents in this decay mode. |
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